Cream-separator.



PATENTED JUNE 2, 1908.

O. ANDEREEON.

CREAM SEPARATOR.

APPLICATION FILED F313. 1, 1904.

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ATTORNEY.

PATENTED JUNE 2, 1908.

0. ANDERSON. CREAM SEPARATOR. APPLICATION FILED FEB.1, R304.

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@M ATTORNEY No. 889,350. PATENTED JUNE 2, 1908. O. ANDERSON.

CREAM SEPARATOR.

APPLICATION FILED FEB-1, 1904.

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' /ATTORNEY UNITED STATES PATENT OFFICE.

OSCAR ANDERSON, OF ARLINGTON, NEW JERSEY, ASSIGNOR TO NATIONAL DAIRY MACHINE COMPANY, OF NEWARK, NEW JERSEY,

A CORPORATION OF FEW JERSEY.

GREAM-SEPARATOR.

' Specification of Letters Patent.

Patented June 2, 1908.

Application filed February 1, 1904. Serial No. 191,467.

description of the invention, such as will enable others skilled in the art to which it appertains to make and use thesame, refer ence being had to the accompanying draws lugs, and to letters of reference marked lcatron." a y Y This invention relates to certain improvements in that class of centrifugal cream separators represented by the one shown in my prior patent dated February 16, 1897, No. 576,994, the objects of the present improvements being to secure greater efficiency in the separation of the creanffrom the wholemilk; to increase the skimming ca acity of the machine to avoid. the accumu ation of cream at points within the said machine, and to revent the cream from being acted on untihly by the centrifugal force and injured for certain purposes; to; avoid the butter fat globules from being broken and thus giving he cream an oily appearance, rendering it unsuitable for certain confectioners uses,

ice cream, etc, and to secure other advantages and. results, some of which may be referred to'hereinafter in connection with the I .nearly of the conical part or base 18, being preferdescription of the working parts.

The invention consists in the improved centrifugal creamer, and in the arrangements and combinations of parts of the same, all substantially as will be herein. fter set forth and finally embraced in the clauses of the claim.

Referring to the accompanying drawings, in which like letters'of reference indicate cor responding parts in each of the several figures, Figure 1 is a vertical section of a separating bowl and its contents, showing the relationsof the several parts; Fig. 2 is a hori- 1 zontalsection of the same taken on line as; Fig. 3 is a section taken on line 34, of Fig.1; and Fig. 4 is a detail perspective view of a liner showing a preferred construction; Figs. 5 and 6 are s de elevations on a reduced scale showing-modifications in the detail construction of the liners; Figs. 7 and S are elevations showing further modifications in the thereon, which form a part-ofthis specifibowl is arranged,

construction of the liners, and Figs. 9 and 10 are sections taken horizontally through Figs. 7 and 8. Fig. 11 is a detail side view of what I may term the inner filler; Fig. 12 is a sectional view showing a. modification of construction Fig. 13 shows the underside of the cap or cover of the bowl, Figs. 14 and 15m, respectively, liners as arranged in Fig. 12; Fig. 16 is a plan of an upper ring in connection. with the acking ring for imperviously closing the oint at the edgeof the cover, and Fig. 17 is an edge view .of the last said ring.

.In said drawings, 1.1 indicates a bowl ar-' ranged upon a vertical shaft 12, in any manrotated at a high rate of speed by any suitable motive mechanism (not shown). The said bowl 11, is provided with a cover 13,

which may be screwed or otherwise imperviously seated upon the open top. of said bowl. The said cover is provided with blue milk outlets 14, and cream outlets 1.5, the

outflo'wing of the cream being regulated and controlled by a suitable cream screw 16, of any usual construction. ithin the said concentric with the vertical axes thereof, a'whole milk feeding tube 17. This said tubeis preferably cast in one solid piece of aluminum, of which the base is given a conical form as at 18, and above said conical base, said iece is made cylindrical as at 19. The centra whole milk passage of the tube extends from. the top of said bowl to, or to, the bottom thereof, the under side tion 19, of the central riiece or new milk tube 17, is arranged what I may term, an inner filler 25, adapted to occupy, or partly occupy that poriton of the spaceat'the interior of the bowl between the periphery of the central tube 17, and theinnermost liners of the series, taking. up much of the'space at the bottom and top views of the her common in this art, the said shaft being a indicated in Figs. 1, 2 and 11, tha-t of a series of oppositely disposed truncated pyramids,

the outer sides of said filler being diametricall y small or reduced at the lower end thereof, as at 251, then extending outwardly as at 252, to a point or line of engagement 253, with the inside wall of the inner liner, 24, and then contracting on inclined lines 254, to a point or line 255, lying closely near to and around the tube 17, then again expanding on outwardly inclined lines, as at 256, to a point of engagement 257, with the said inner,-

iner at or near the top thereof, and then again contracting as at 259, toward the tube 17, at the top of the bowl, or at the under side of the cover thereof, as at 258, the filler in vertical section approximating in shape a series of diamonds, as shown in Fig. 1, through the longer axis of which series, the whole milk supply tube or passage"l7,extends. Cream passages 26, are formed in and extend u nvard through the filler near the outside of the whole milk supply tube, which cream passages 26, are in open communication with the main interior chamber of the bowl at the contracted parts of the filler, as at 251, 255 and 258, so that the cream within the inwardly contracting ch ambers 27, hugging the inclined walls 252, 254 256, 259, of the said filler will be conducted to the said vertical crean'i. passages 26, and be forced therethrough with considerable rapidity of movement. Said passages 26, are disposed midway between the lateral edges of the facets 261, of the pyramidal formations. The horizontal edges of the facets at the enlarged parts of the filler, serve as stays for the liners, tending to hold the same in proper operative relation within the bowl.

The liners 23, 24, are of peculiar construction in that the peripheries of the said liners are broken up into a collection of facets 23], the inner lines 232, at the outlines of said facets being all formed to lie inclined to radii of the vertical axis of the bowl, so that the cream will not collect in the angles or inward depressions and stand therein subjected to centrifugal pressure, as they would ii} curved concentric to said axis, but on the contrary will flow through the perforations 30, at the points in the lines 232, nearest the said axial center of the bowl and thence toward the central cream passages 26. The said liners 23, 24, are angular 1n horizontal cross section, preferably in the form of octagons, and there are no curved lines concentric with the axis of the bowl therein where the facets meet and at which the cream is lia le to collector stand in the separating opera ion The facets 231, of the angular liners are radii of the axis of the bowl and form low protuberances which make the vertical cream assage or chambers at the outer sides of said liners irregular, so that the cream in its upfiow movement will be forced into contact with the outer surfaces of said facets being permitted to flow not onlyvver'tically but iorizontally through the: chambers in. a

spiral course, thereby increasing the distance of movement or passage throughthebowl, wherebythe said milk will be given greater opportunity for contact with the said liner an deposit its cream therefrom with greater thoroughness and perfection and at a position where the centrifugal force is reates't.

At the top and bottom edges of the liners are formed end flanges 31, which are preferably angular ininner and outeroutline, in plan, as in Figs. 15, 16, and at the bottom said flanges may be notched on their inner sides, so as to form slots 32, permitting the new milk to flow u ward, very close to the liners to the chain ers between said liners. Thus, the new milk is brought in thin and flat streams, against the lining partitions at the beghming of the cream separating operation.

\Vhile the polygonal lining partitions are horizontally corrugated on angular lines, as in Figs. 1, 4, 5 and 6, and the milk in its upward course is forced more effectually against the inclined facets, 231, yet, nevertheless, under some conditions the corrugations may be spiral as in Fig; 8, or wavy as in Fig. 7, or otherwise shaped. The outer polygonal liner is also provided with a flange or flanges 35, which conforms to the straight lines of the polygon at the inside, and is curved to conform to the bowl at the outside to hold the liner in shape.

The operation of the bowl and its manner of conducting the milk from the new milk entrance in the cover to the cream and blue milk exits on the same is similar in a broad sense to that commonly employed and specified in the patent above referred to and needs no detail description here.

Having thus described the invention, what I claim as new is 1.- In a centrifugal creamer, a rotatable bowl provided with a main liquid chamber, means for introducing fluids into one end of the chamber and outlets for separated liquids at the other end of the chamber, and a cream-collecting liner therein consisting of a hollow sleeve having the horizontal crosssection of a crmvex polygon, said liner comprising a plurality of continuous series of facets, the facets of each series adjacent one another, corresponding facets of adjacent series mechanically united and. inclined in opposite directions with respect to the axis of the sleeve, said sleeve havirgperforations in proximity to the ap1ces oi the pyramids preferably plain surfa es inclined to the i formed by said facets and having other perforations in proximity to the centers of the base-linesof said facets.

2; In a centrifugal creamer, a rotatableliquids at the other end of the chamber, a cream-collecting liner, and a filler therein having a plurality of series of facets, the

10 facets of adjacent seriesinclined o positely with respect to ,the axis of the er, said of January, 190

filler haying also a plurality of verticalflow passages leading upward from-near-the bases of said facets toward the outlet for light li uid. I n

n testimony, that I claim the foregoing, I have hereunto set my hand this 25th day OSCAR ANDERSON. Witnesses:

CHARLES H; PELL,

RUssELL M. E ERETT. 

